🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.57 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.6

Radius: 14.8

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.89 AU - 1.39 AU

Year: 786 Days

Day: 6.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (47)

Outer Limit: 75,297,893 km

• M1: 187,147 km (0.082 R)
• M2: 295,605 km (0.087 R)
• M3: 390,899 km (0.076 R)
• M4: 557,102 km (0.067 R)
• M5: 681,418 km (0.076 R)
• M6: 790,176 km (0.118 R)
• M7: 992,582 km (0.118 R)
• M8: 1,119,291 km (0.03 R)
• M9: 1,213,538 km (0.061 R)
• M10: 1,383,780 km (0.116 R)
• M11: 1,626,278 km (0.105 R)
• M12: 1,742,067 km (0.116 R)
• M13: 1,845,739 km (0.093 R)
• M14: 1,966,913 km (0.095 R)
• M15: 2,067,443 km (0.096 R)
• M16: 2,201,632 km (0.042 R)
• M17: 2,412,714 km (0.11 R)
• M18: 2,742,279 km (0.06 R)
• M19: 2,855,524 km (0.095 R)
• M20: 3,059,725 km (0.089 R)
• M21: 3,287,264 km (0.044 R)
• M22: 3,389,140 km (0.1 R)
• M23: 3,577,334 km (0.118 R)
• M24: 3,827,162 km (0.109 R)
• M25: 3,954,321 km (0.1 R)
• M26: 4,243,194 km (0.104 R)
• M27: 4,466,992 km (0.041 R)
• M28: 4,726,096 km (0.067 R)
• M29: 5,118,641 km (0.1 R)
• M30: 5,226,650 km (0.036 R)
• M31: 5,324,487 km (0.106 R)
• M32: 5,577,457 km (0.113 R)
• M33: 5,699,828 km (0.111 R)
• M34: 5,992,592 km (0.088 R)
• M35: 6,152,362 km (0.038 R)
• M36: 6,290,441 km (0.106 R)
• M37: 6,841,260 km (0.097 R)
• M38: 6,960,490 km (0.056 R)
• M39: 7,176,958 km (0.036 R)
• M40: 7,346,751 km (0.073 R)
• M41: 7,567,109 km (0.104 R)
• M42: 7,752,461 km (0.1 R)
• M43: 7,889,343 km (0.094 R)
• M44: 8,014,556 km (0.114 R)
• M45: 8,178,216 km (0.095 R)
• M46: 8,432,234 km (0.105 R)
• M47: 8,560,289 km (0.066 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.4

Radius: 12.1

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.13 AU - 1.77 AU

Year: 1127 Days

Day: 12.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 75,297,893 km

• M1: 151,692 km (0.119 R)
• M2: 307,573 km (0.063 R)
• M3: 466,745 km (0.029 R)
• M4: 573,708 km (0.083 R)
• M5: 860,487 km (0.069 R)
• M6: 950,994 km (0.077 R)
• M7: 1,187,059 km (0.11 R)
• M8: 1,400,834 km (0.048 R)
• M9: 1,503,309 km (0.106 R)
• M10: 1,614,909 km (0.048 R)
• M11: 2,193,554 km (0.102 R)
• M12: 2,342,553 km (0.074 R)
• M13: 2,787,158 km (0.088 R)
• M14: 3,011,555 km (0.093 R)
• M15: 3,209,922 km (0.046 R)
• M16: 3,363,708 km (0.118 R)
• M17: 3,686,989 km (0.112 R)
• M18: 3,779,889 km (0.064 R)
• M19: 4,116,185 km (0.092 R)
• M20: 4,221,652 km (0.09 R)
• M21: 4,543,437 km (0.04 R)
• M22: 4,725,647 km (0.103 R)
• M23: 4,845,475 km (0.108 R)
• M24: 5,125,821 km (0.085 R)
• M25: 5,258,515 km (0.096 R)
• M26: 5,344,384 km (0.093 R)
• M27: 5,517,618 km (0.039 R)
• M28: 5,978,829 km (0.08 R)
• M29: 6,158,645 km (0.077 R)
• M30: 6,391,270 km (0.107 R)
• M31: 6,585,597 km (0.11 R)
• M32: 6,875,518 km (0.083 R)
• M33: 7,138,062 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.1

Radius: 12.7

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 2.78 AU - 4.38 AU

Year: 4374 Days

Day: 5.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 75,297,893 km

• M1: 158,723 km (0.047 R)
• M2: 300,093 km (0.077 R)
• M3: 388,954 km (0.064 R)
• M4: 533,765 km (0.114 R)
• M5: 739,761 km (0.095 R)
• M6: 853,605 km (0.08 R)
• M7: 973,882 km (0.093 R)
• M8: 1,160,131 km (0.049 R)
• M9: 1,295,218 km (0.11 R)
• M10: 1,449,005 km (0.089 R)
• M11: 1,541,606 km (0.069 R)
• M12: 1,677,740 km (0.114 R)
• M13: 2,247,259 km (0.097 R)
• M14: 2,642,796 km (0.077 R)
• M15: 2,975,352 km (0.053 R)
• M16: 3,060,623 km (0.118 R)
• M17: 3,164,145 km (0.087 R)
• M18: 3,754,308 km (0.109 R)
• M19: 3,977,508 km (0.112 R)
• M20: 4,147,751 km (0.118 R)
• M21: 4,693,184 km (0.115 R)
• M22: 5,015,119 km (0.065 R)
• M23: 5,240,713 km (0.062 R)
• M24: 5,427,710 km (0.096 R)
• M25: 5,574,765 km (0.086 R)
• M26: 6,198,289 km (0.113 R)
• M27: 6,798,625 km (0.084 R)
• M28: 6,934,609 km (0.069 R)
• M29: 7,117,418 km (0.103 R)
• M30: 7,209,271 km (0.041 R)
• M31: 7,301,722 km (0.084 R)
• M32: 7,604,658 km (0.051 R)
• M33: 8,126,904 km (0.118 R)
• M34: 8,223,096 km (0.084 R)
• M35: 8,685,204 km (0.115 R)
• M36: 8,808,323 km (0.091 R)
• M37: 9,736,877 km (0.072 R)
• M38: 9,839,202 km (0.065 R)
• M39: 9,941,826 km (0.12 R)
• M40: 10,070,629 km (0.119 R)
• M41: 10,225,912 km (0.12 R)
• M42: 10,486,512 km (0.051 R)
• M43: 10,749,355 km (0.096 R)
• M44: 12,677,223 km (0.099 R)
• M45: 13,609,217 km (0.1 R)
• M46: 14,011,337 km (0.116 R)
• M47: 14,359,002 km (0.111 R)
• M48: 14,563,203 km (0.107 R)
• M49: 14,651,017 km (0.07 R)
• M50: 14,739,130 km (0.118 R)
• M51: 15,063,159 km (0.027 R)
• M52: 15,211,261 km (0.076 R)
• M53: 15,419,501 km (0.093 R)
• M54: 15,808,605 km (0.09 R)
• M55: 16,504,983 km (0.063 R)
• M56: 16,688,390 km (0.112 R)
• M57: 16,810,911 km (0.074 R)
• M58: 16,964,698 km (0.049 R)
• M59: 17,149,601 km (0.096 R)
• M60: 17,335,401 km (0.112 R)
• M61: 17,552,917 km (0.119 R)
• M62: 17,677,532 km (0.071 R)
• M63: 17,896,543 km (0.107 R)
• M64: 18,685,672 km (0.089 R)
• M65: 18,781,265 km (0.11 R)
• M66: 18,908,722 km (0.079 R)
• M67: 19,615,422 km (0.092 R)
• M68: 20,658,868 km (0.111 R)
• M69: 21,253,669 km (0.119 R)
• M70: 21,386,661 km (0.107 R)
• M71: 21,620,034 km (0.075 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 405.9

Radius: 5.3

Gravity: 14.45 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 5.4 AU - 7.7 AU

Year: 10824 Days

Day: 22.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 75,297,893 km

• M1: 76,594 km (0.1 R)
• M2: 297,251 km (0.1 R)
• M3: 470,485 km (0.088 R)
• M4: 525,537 km (0.047 R)
• M5: 688,749 km (0.093 R)
• M6: 953,836 km (0.044 R)
• M7: 1,191,098 km (0.088 R)
• M8: 1,590,824 km (0.112 R)
• M9: 1,983,817 km (0.079 R)
• M10: 2,029,295 km (0.038 R)
• M11: 2,238,283 km (0.108 R)
• M12: 2,454,303 km (0.097 R)
• M13: 2,957,849 km (0.112 R)
• M14: 3,010,059 km (0.096 R)
• M15: 3,631,040 km (0.111 R)
• M16: 4,260,996 km (0.048 R)
• M17: 4,528,328 km (0.104 R)
• M18: 4,679,272 km (0.098 R)
• M19: 4,862,679 km (0.117 R)
• M20: 5,716,284 km (0.081 R)
• M21: 6,479,383 km (0.079 R)
• M22: 6,513,342 km (0.099 R)
• M23: 6,615,367 km (0.05 R)
• M24: 6,855,622 km (0.037 R)
• M25: 7,168,730 km (0.112 R)
• M26: 7,203,736 km (0.105 R)
• M27: 7,989,873 km (0.107 R)
• M28: 8,099,079 km (0.035 R)
• M29: 8,245,685 km (0.061 R)
• M30: 8,393,039 km (0.085 R)
• M31: 8,878,035 km (0.093 R)
• M32: 9,333,710 km (0.112 R)
• M33: 9,836,060 km (0.102 R)
• M34: 10,506,109 km (0.049 R)
• M35: 10,705,972 km (0.096 R)
• M36: 10,947,423 km (0.065 R)
• M37: 10,987,964 km (0.097 R)
• M38: 11,559,128 km (0.092 R)
• M39: 11,848,301 km (0.033 R)
• M40: 11,931,328 km (0.097 R)
• M41: 12,098,129 km (0.069 R)
• M42: 12,560,536 km (0.115 R)
• M43: 12,857,937 km (0.05 R)
• M44: 12,900,572 km (0.117 R)
• M45: 13,028,778 km (0.093 R)
• M46: 13,157,582 km (0.105 R)
• M47: 13,807,285 km (0.082 R)
• M48: 14,202,223 km (0.107 R)
• M49: 14,290,486 km (0.1 R)
• M50: 15,183,137 km (0.075 R)
• M51: 15,318,523 km (0.116 R)
• M52: 15,864,405 km (0.088 R)
• M53: 16,139,665 km (0.102 R)
• M54: 16,416,422 km (0.049 R)
• M55: 17,021,695 km (0.082 R)
• M56: 17,445,056 km (0.074 R)
• M57: 17,776,715 km (0.083 R)
• M58: 18,206,061 km (0.081 R)
• M59: 18,929,367 km (0.075 R)
• M60: 18,977,986 km (0.105 R)
• M61: 19,319,069 km (0.057 R)
• M62: 19,563,811 km (0.049 R)
• M63: 19,858,968 km (0.073 R)
• M64: 20,205,287 km (0.117 R)
• M65: 20,553,551 km (0.078 R)
• M66: 21,356,891 km (0.045 R)
• M67: 22,221,717 km (0.028 R)
• M68: 23,149,822 km (0.098 R)
• M69: 24,037,835 km (0.072 R)
• M70: 24,353,935 km (0.097 R)
• M71: 24,671,531 km (0.104 R)
• M72: 26,604,934 km (0.077 R)
• M73: 26,986,558 km (0.06 R)
• M74: 27,479,932 km (0.1 R)
• M75: 28,419,706 km (0.054 R)
• M76: 28,642,457 km (0.116 R)
• M77: 29,820,989 km (0.092 R)
• M78: 30,387,666 km (0.084 R)
• M79: 30,501,510 km (0.086 R)
• M80: 31,187,117 km (0.05 R)
• M81: 31,301,858 km (0.113 R)
• M82: 32,051,344 km (0.081 R)
• M83: 35,525,904 km (0.119 R)
• M84: 36,066,401 km (0.072 R)
• M85: 36,912,527 km (0.115 R)
• M86: 38,132,497 km (0.05 R)
• M87: 38,870,912 km (0.081 R)
• M88: 38,932,547 km (0.087 R)
• M89: 39,676,048 km (0.101 R)
• M90: 39,800,364 km (0.077 R)
• M91: 40,111,827 km (0.102 R)
• M92: 40,424,187 km (0.059 R)
• M93: 41,681,408 km (0.113 R)
• M94: 41,807,818 km (0.049 R)

Asteroid Belt

Center: 7.1 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 720

Radius: 4.6

Gravity: 34.03 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 6.84 AU - 8.46 AU

Year: 13662 Days

Day: 17.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (89)

Outer Limit: 75,297,893 km

• M1: 117,135 km (0.094 R)
• M2: 201,957 km (0.045 R)
• M3: 466,745 km (0.11 R)
• M4: 894,595 km (0.086 R)
• M5: 1,338,153 km (0.092 R)
• M6: 1,622,090 km (0.092 R)
• M7: 1,730,099 km (0.111 R)
• M8: 2,802,417 km (0.102 R)
• M9: 3,505,078 km (0.096 R)
• M10: 3,893,883 km (0.097 R)
• M11: 4,597,143 km (0.096 R)
• M12: 4,904,865 km (0.088 R)
• M13: 4,982,806 km (0.052 R)
• M14: 5,061,195 km (0.068 R)
• M15: 6,327,691 km (0.026 R)
• M16: 6,756,139 km (0.098 R)
• M17: 7,238,143 km (0.062 R)
• M18: 8,374,339 km (0.105 R)
• M19: 10,154,853 km (0.1 R)
• M20: 10,655,557 km (0.07 R)
• M21: 10,705,972 km (0.105 R)
• M22: 11,525,020 km (0.048 R)
• M23: 11,732,811 km (0.077 R)
• M24: 12,576,693 km (0.066 R)
• M25: 14,433,651 km (0.111 R)
• M26: 15,279,777 km (0.047 R)
• M27: 17,434,585 km (0.11 R)
• M28: 17,732,883 km (0.027 R)
• M29: 18,516,626 km (0.083 R)
• M30: 18,760,022 km (0.114 R)
• M31: 19,435,007 km (0.053 R)
• M32: 19,744,376 km (0.095 R)
• M33: 20,180,154 km (0.084 R)
• M34: 20,367,900 km (0.054 R)
• M35: 21,061,435 km (0.088 R)
• M36: 21,188,294 km (0.045 R)
• M37: 21,379,181 km (0.098 R)
• M38: 22,083,787 km (0.113 R)
• M39: 24,043,968 km (0.117 R)
• M40: 24,977,608 km (0.111 R)
• M41: 26,742,714 km (0.097 R)
• M42: 27,570,738 km (0.09 R)
• M43: 28,547,462 km (0.12 R)
• M44: 29,110,698 km (0.062 R)
• M45: 29,181,458 km (0.098 R)
• M46: 29,891,151 km (0.116 R)
• M47: 30,033,867 km (0.118 R)
• M48: 30,105,225 km (0.086 R)
• M49: 30,319,748 km (0.08 R)
• M50: 30,391,406 km (0.107 R)
• M51: 31,038,566 km (0.047 R)
• M52: 32,127,190 km (0.093 R)
• M53: 32,492,957 km (0.111 R)
• M54: 32,713,015 km (0.118 R)
• M55: 32,933,522 km (0.038 R)
• M56: 34,043,838 km (0.096 R)
• M57: 34,790,780 km (0.054 R)
• M58: 35,316,766 km (0.116 R)
• M59: 35,694,202 km (0.073 R)
• M60: 35,996,988 km (0.095 R)
• M61: 36,224,676 km (0.1 R)
• M62: 37,524,083 km (0.114 R)
• M63: 38,140,875 km (0.101 R)
• M64: 38,838,599 km (0.036 R)
• M65: 39,384,332 km (0.08 R)
• M66: 40,168,225 km (0.062 R)
• M67: 42,791,424 km (0.054 R)
• M68: 43,032,575 km (0.118 R)
• M69: 43,274,326 km (0.073 R)
• M70: 45,060,225 km (0.077 R)
• M71: 45,797,743 km (0.088 R)
• M72: 46,126,858 km (0.115 R)
• M73: 46,374,143 km (0.055 R)
• M74: 47,534,125 km (0.086 R)
• M75: 47,950,605 km (0.095 R)
• M76: 48,034,081 km (0.083 R)
• M77: 48,117,706 km (0.052 R)
• M78: 50,815,405 km (0.092 R)
• M79: 50,900,526 km (0.08 R)
• M80: 50,985,647 km (0.111 R)
• M81: 52,268,449 km (0.045 R)
• M82: 52,440,187 km (0.028 R)
• M83: 54,255,857 km (0.116 R)
• M84: 55,477,772 km (0.097 R)
• M85: 56,532,287 km (0.096 R)
• M86: 56,796,926 km (0.115 R)
• M87: 57,593,385 km (0.105 R)
• M88: 57,948,530 km (0.099 R)
• M89: 58,839,535 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 551.8

Radius: 4.7

Gravity: 24.98 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 8.19 AU - 12.79 AU

Year: 21937 Days

Day: 15.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 75,297,893 km

• M1: 430,094 km (0.09 R)
• M2: 752,926 km (0.087 R)
• M3: 1,334,114 km (0.08 R)
• M4: 1,634,806 km (0.111 R)
• M5: 1,666,071 km (0.072 R)
• M6: 2,089,882 km (0.119 R)
• M7: 2,691,864 km (0.095 R)
• M8: 2,803,464 km (0.073 R)
• M9: 2,992,705 km (0.058 R)
• M10: 4,828,720 km (0.103 R)
• M11: 5,332,267 km (0.027 R)
• M12: 5,566,537 km (0.04 R)
• M13: 6,289,693 km (0.107 R)
• M14: 7,247,418 km (0.1 R)
• M15: 8,411,888 km (0.099 R)
• M16: 8,575,100 km (0.105 R)
• M17: 8,794,410 km (0.075 R)
• M18: 9,576,508 km (0.064 R)
• M19: 10,497,133 km (0.077 R)
• M20: 10,968,067 km (0.084 R)
• M21: 11,747,921 km (0.073 R)
• M22: 12,731,976 km (0.095 R)
• M23: 12,982,103 km (0.085 R)
• M24: 13,170,746 km (0.109 R)
• M25: 13,297,007 km (0.073 R)
• M26: 13,423,716 km (0.052 R)
• M27: 14,321,603 km (0.056 R)
• M28: 15,905,545 km (0.113 R)
• M29: 16,854,893 km (0.038 R)
• M30: 18,950,161 km (0.049 R)
• M31: 19,164,086 km (0.1 R)
• M32: 20,684,449 km (0.062 R)
• M33: 22,619,647 km (0.095 R)
• M34: 23,379,305 km (0.03 R)
• M35: 23,532,194 km (0.107 R)
• M36: 23,915,912 km (0.087 R)
• M37: 24,611,991 km (0.079 R)
• M38: 25,471,581 km (0.118 R)
• M39: 25,550,269 km (0.08 R)
• M40: 25,865,621 km (0.099 R)
• M41: 26,979,527 km (0.035 R)
• M42: 27,381,048 km (0.067 R)
• M43: 27,461,681 km (0.044 R)
• M44: 27,865,595 km (0.096 R)
• M45: 28,352,985 km (0.069 R)
• M46: 28,597,727 km (0.071 R)
• M47: 31,251,444 km (0.033 R)
• M48: 31,588,787 km (0.113 R)
• M49: 32,351,886 km (0.087 R)
• M50: 33,637,231 km (0.117 R)
• M51: 33,809,867 km (0.027 R)
• M52: 35,816,273 km (0.111 R)
• M53: 36,523,273 km (0.079 R)
• M54: 36,789,408 km (0.064 R)
• M55: 37,860,977 km (0.085 R)
• M56: 39,033,376 km (0.089 R)
• M57: 39,124,032 km (0.103 R)
• M58: 39,669,615 km (0.11 R)
• M59: 41,691,281 km (0.108 R)
• M60: 41,783,882 km (0.111 R)
• M61: 42,155,334 km (0.116 R)
• M62: 42,527,832 km (0.072 R)
• M63: 42,621,181 km (0.04 R)
• M64: 43,182,473 km (0.101 R)
• M65: 43,557,963 km (0.083 R)
• M66: 44,786,012 km (0.042 R)
• M67: 45,166,140 km (0.063 R)
• M68: 45,451,872 km (0.045 R)
• M69: 45,547,316 km (0.099 R)
• M70: 45,833,796 km (0.038 R)
• M71: 45,929,538 km (0.112 R)
• M72: 46,889,807 km (0.109 R)
• M73: 48,537,478 km (0.116 R)
• M74: 49,810,257 km (0.102 R)
• M75: 50,302,583 km (0.084 R)
• M76: 50,598,787 km (0.1 R)
• M77: 51,292,323 km (0.055 R)
• M78: 51,590,471 km (0.103 R)
• M79: 52,388,426 km (0.1 R)
• M80: 52,889,130 km (0.092 R)
• M81: 53,391,480 km (0.036 R)
• M82: 54,400,966 km (0.086 R)
• M83: 55,212,984 km (0.075 R)
• M84: 56,029,040 km (0.081 R)
• M85: 56,336,165 km (0.113 R)
• M86: 56,746,511 km (0.062 R)
• M87: 56,951,909 km (0.087 R)
• M88: 57,983,237 km (0.046 R)
• M89: 58,190,281 km (0.094 R)
• M90: 61,219,189 km (0.105 R)
• M91: 64,620,446 km (0.108 R)
• M92: 67,428,847 km (0.113 R)
• M93: 68,738,426 km (0.085 R)
• M94: 69,286,553 km (0.038 R)
• M95: 71,937,577 km (0.097 R)
• M96: 72,494,081 km (0.108 R)
• M97: 74,172,120 km (0.072 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 273 - 12,447 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit